The invention discloses a clarifying process and a 
quality control method of a medicinal composition with the function of repairing 
skin barrier. The 
medicine is composed of 6 medicinal materials including radix cynanchi atrati, pilea sinofasciata, folium 
ginkgo, radix seu herba polygalae fallacis, 
Adinandra nitida Merr.ex H.L.Li and gemma terminalis anoectochili roxburghii; for the specific clarifying process, a II type ZTC 1+1 natural 
clarifying agent is adopted for clarifying an extracting solution of the medicinal composition; for the specific 
quality control method, a thin-layer 
chromatography method is adopted for carrying out thin-layer identification on radix cynanchi atrati and folium 
ginkgo in the medicinal composition, and meanwhile, the contents of Hernandulcin, tenuigenin, camelliaside A and kinsenoside in the medicinal composition are measured by adopting a 
high performance liquid chromatography method. The clarifying process and the 
quality control method adopted by theinvention have the advantages that the equipment investment is small, the operation process is simple, the defects that in the traditional 
alcohol precipitation method, the 
alcohol consumption amountis large, the 
alcohol recovery is complicated, the measurement for various ingredients of the 
medicine is complicated, etc., are overcome, the inherent quality, curative effects and stability of the composition are quickly and effectively guaranteed, and the 
controllability of the 
quality standard of the medicinal composition is improved.